Portable spray pump



Nov. 14, 1961 v. SANTARELLI PORTABLE SPRAY PUMP Filed Aug. 11, 1958 %N W i Pg,

l J\) Illl'll I ll 4 INVENTOR. -Vl NC ENT SANTARELL! ATTORNEYS nited States Patent 3,008,428 PORTABLE SPRAY PUMP Vincent Santarelli, Detroit, Mich. Filed Aug. 11, 1958, Ser. No. 754,345 2 Claims. (Cl. 103-205) This invention relates to improvements in portable hand spray pumps of the type used with a back pack spray assembly for use in spraying insecticides, water, weed and plant killers in forestry, orchard and other agricultural operations. i

It is an important object of this invention to provide an improved handle grip for portable hand sprays which gen{ erally comprises an inner cylinder provided with a nozzle on one end thereof and which is also provided with a handle adjacentthis nozzle for moving the inner cylinder through a reciprocatory movement in an outer cylinder which telescopically receives the inner cylinder.

It is another object of this invention to provide a hand spray pump having an inner cylinder reciprocally mounted in an outer cylinder and incorporating a novel hand grip carried on the inner cylinder adjacent a spray nozzle carried thereon and which is pivotally mounted for movement from an operating position perpendicular to the axis of the pump to an inoperative position substantially parallel to the longitudinal axis of the pump. The novel hand grip being adapted while in the inoperative position to releasably lock the inner and outer cylinders together.

It is still another object of the invention to provide a hand grip for use on a portable hand spray pump and which is substantially U-shaped in cross section and pivotally and swivelly mounted on the pump whereby the hand grip reduces the overall reach required to operate the pump because the handle may be used in a position where it extends rearwardly beyond the outer cylinder of the pump.

It is a further object of the invention to provide a portable hand spray pump which is simple and compact in construction, economical of manufacture, and elficient in operation.

Other objects, features and advantages of this invention will be apparent from the following detailed description and appended claims, reference being had to the accompanying drawing forming a part of the specification wherein like reference numerals designate corresponding parts of the several views.

In the drawing:

FIG. 1 is a broken side elevational view of the pump fully collapsed and with the improved handle grip in a position to releasably lock the inner and outer cylinders together;

FIG. 2 is a broken side elevational view of the pump in an extended position with the novel hand grip pivoted downwardly and swivelled sidewardly to a first operative position;

FIG. 3 is an elevational sectional view of the structure illustrated in FIG. 1 taken along the line 33 thereof, and looking in the direction of the arrows;

FIG. 4 is an elevational sectional view of the structure illustrated in FIG. 1 taken along the line 4-4 thereof, and looking in the direction of the arrows;

FIG. 5 is an elevational sectional view of the structure taken along the line 5-5 thereof, and looking in the direction of the arrows; and,

FIG. 6 is a partial plan view of the structure illustrated in FIG. 1, taken in the direction of the arrow marked 6.

Referring now in detail to the drawing, the pump illustrated comprises an outer cylinder or tubular body 10 having an inlet angle fitting 11 secured to one end thereof. The fitting 11 is provided with the hose engaging nipple 12 for connecting the pump to a suitable source of fluid to Patented Nov. 14, 1961 be sprayed by the pump. Telescopically and reciprocally movable into the end of the outer cylinder 10 opposite to the fitting 11 is an inner cylinder or tubular body 13 which is provided on the inner end thereof with the usual check valve and seal means generally indicated by the numeral 14. The end of the outer cylinder. 10 opposite the fitting 11 is enclosed by the usual packing nut 15 which surrounds'the inner cylinder 13. Removably carried on the outer end of the inner cylinder 13 is a conventional spray nozzle 16, the details of which arenot herein disclosed since no claim thereto per se is made in this application.

As best; seen in FIGS. 1, 3 and 5, the support member or block 17 is fixedly carried on the inner cylinder 13 in a position adjacent the rear end of the nozzle 16 but being spacedrearwardly a short distance therefrom. The support member 17 is provided with the axial aperture or bore 18 therethrough in which the inner cylinder 13 is received. The support member 17 may be fixed on the inner cylinder 13 by any suitable means as by a press fit.

As shown in FIGS. 3 and 5, the support member 17 is provided with a stepped vertical transverse bore therethrough which comprises the large bore 19 and the communicating second smaller bore 20'. Rotatably mounted in the second or smaller bore 20 is the stub shaft 21 which is provided with the integral enlarged head 22 which is' journalled in the enlarged first bore 19. Mounted around the outer end of the stub shaft 21 is the ringor annularretainer member 23 which is secured to the stub shaft 21 by means of the transverse pin 24. The pin 24 is adapted to be seated in the bores 25 in the ring 23 and in the bore 26 in the outer end of the stub shaft 21 and to be retained in these bores by means of a press fit,

The numeral 27 generally designates an arcuately shaped hand grip or handle which is substantially U-shaped in cross section and which is preferably made from a suitable lightweight metal or the like. The hand grip 27 is pivotally mounted at the forward end thereof on the outer ends of the pin 24. As shown in FIG. 3, the ends of the pin 24 are adapted to pass through the apertures 28 in the walls or leg portions of the U-shaped hand grip 27.

It will be seen that the U-shaped hand grip 27 is pivotally and swivelly mounted on the inner cylinder 13. The hand grip 27 may be pivoted downwardly around the pin 24 to a vertical position and in which vertical position it may then be swivelled degrees about the axis of the stub shaft 21 to a first operating position as shown in FIG. 2. It will be seen that when the hand grip 27 is in the first operating position shown in FIG. 2, the bight portion 29 of the handle is adapted to slidably engage the lower face of the support member 17 to maintain the handle in the position normal to the longitudinal axis of the pump.

When the hand grip 27 is in the position shown in FIG. 1, the sides or arms of the hand grip are adapted to pass over the square sides 30 of the support member 17 and also over the sides of the packing nut 15 on the front end of the outer cylinder 10. As shown in FIG. 6, the sides or arms of the U-shaped hand grip are curved inwardly slightly at the outer ends thereof so as to releasably grip the outer sides of the outer cylinder 10 whereby the inner and outer cylinders of the pump will be releasably locked together during the times that the pump is not in use. It will be seen in FIG. 6 that the curvature of the hand grip arms extends from the rear end of the handle forwardly to the point marked by the numeral 31 which is approximately more than half the length of the handle 27 The novel hand grip 27 of the present invention may be employed in pumps commonly known in the art as single action or double action pumps. For the purpose of illustration a single action pump has been illustrated. In use, an operator would grasp the outer cylinder 10 with the right hand and the hand grip 27 would then be moved downwardly and swivelled to the first operating position shown in FIG. 2. Fluid would then be pumped out of the spray nozzle 16 by either holding the outer cylinder stationary with the right hand while reciprocating the inner cylinder 13 with the left hand by means of the hand grip 27. The length of reach required by the operator for gripping the hand grip 27 during the pumping operation may be reduced by merely pivoting the handle 27 downwardly from the solid line locked position of FIG. 1 to the second operating position shown by the dotted line in FIG. 1 and indicated by the numeral 32. It will be seen that in this position the overall reach required to operate the pump is reduced by substantially the length of the handle grip 27. It will be obvious that the handle grip 27 may be made to any desired length.

While it Will be apparent that the preferred embodiment of the invention herein disclosed is well calculated to fulfill the objects above stated, it will be appreciated that the invention is susceptible to modification, variation and change without departing from the proper scope or fair meaning of the subjoined claims.

What I claim is:

1. In a hand spray pump of the character described, an outer tubular body and an inner tubular body telescopically received in one end of said outer tubular body; a support member fixed on said inner tubular body and disposed so as to be adjacent said one end of said outer tubular body when said tubular bodies are in a collapsed position; a shaft rotatably mounted in said support member; a transverse pin fixed in the outer end of said shaft; and, an arcuately shaped hand grip pivotally mounted on said pin and being movable between an operating position perpendicular to the longitudinal axis of said tubular bodies and a releasable locking position for a releasable locking engagement with the outer tubular body when the tubular bodies are in the collapsed position.

2. In a hand spray pump of the character described, an outer tubular body having an inlet fitting enclosing the rear end thereof and having an open front end; an inner tubular body telescopically received in the open front end of said outer tubular body; a packing nut surrounding the inner tubular body and enclosing the open front end of said outer tubular body; the outer end of said inner tubular body having a nozzle mounted thereon and extending beyond the front end of said outer tubular body in the collapsed position of the tubular bodies; a support member fixed on said inner tubular body rearwardly of said nozzle; an arcuately shaped hand grip pivotally mounted on said support member; said hand grip being movable between an operating position perpendicular to the longitudinal axis of the pump and a releasable locking position for a releasable locking engagement with the outer tubular body when the packing nut on said outer tubular body is disposed adjacent said support member; and, said arcuately shaped hand grip being pivotally mounted on a shaft, with said shaft being rotatably mounted in said support member.

References Cited in the file of this patent UNITED STATES PATENTS 125,824 Mayall Apr. 16, 1872 1,426,809 Bate Aug. 22, 1922 1,432,054 Cuff Oct. 17, 1922 1,522,995 Bate Jan. 13, 1925 1,526,309 Hof Feb. 10, 1925 2,648,569 Vose Aug. 11, 1953 2,703,191 Iernander Mar. .1, 1955' 2,743,135 Smith Apr- 24, 1956 

